Alfred Russel Wallace

He [the naturalist] looks upon every species of animal and plant now living as the individual letters which go to make up one of the volumes of our earth's history; and, as a few lost letters may make a sentence unintelligible, so the …

That such a moth exists in Madagascar may be safely predicted

they do vary continuously in many directions; and thus there is always material for natural selection to act upon in some direction that may be advantageous.

But whether there be a God and whatever be His nature; whether we have an immortal soul or not, or whatever may be our state after death, I can have no fear of having to suffer for the study of nature and the search for truth

I can see much to admire in all religions

If I had to fix on two only as representing the perfection of the two classes, I should certainly choose the Durian and the Orange as the king and queen of fruits.

Every species has come into existence coincident both in space and time with a pre-existing closely allied species.